Search found 56 matches
akpareek... Are they traveling in the same direction or opposite direction? If opposite direction: Sb = 4m/s Therefore, B will cover 40 m in 10 sec. Remaining distance = 100-40 = 60 m. Sa = 2 m/s Since, they are traveling in opposite direction, we can add their speeds Sab = 4+2 = 6 m/s Tab = 60/6 = ...
- by buzzdeepak
Wed Feb 13, 2013 8:16 am- Forum: Problem Solving
- Topic: Relative speed on circular path
- Replies: 4
- Views: 7242
GMAT Prep Practice - Set containing x and x-3
For a certain set of numbers, if x is in the set, then x-3 is also in the set. If the number 1 is in the set, which of the following must also be in the set. I. 4 II. -1 III.-5 A. I only B. II only C. III only D. I and II only E. II and III only OA: C Question: [spoiler]If we consider x = 1, I under...
- by buzzdeepak
Wed Feb 13, 2013 7:58 am- Forum: Problem Solving
- Topic: GMAT Prep Practice - Set containing x and x-3
- Replies: 3
- Views: 1701
Given that the percentages are all multiples of 10, when the correct answer is added to 119 -- the total number of students in the band -- the resulting sum almost certainly will be a multiple of 10. Thus, the most likely answer choice is B. Nice tip and could be extremely handy when you don't have...
- by buzzdeepak
Sat Feb 09, 2013 8:19 pm- Forum: Problem Solving
- Topic: Overlapping sets
- Replies: 8
- Views: 1938
yea, good point...you can get stuck in endless calculations which might take forever in GMAT to calculate 207/1.15. I realized this and then used second method - substituting the answers and luckily 12 (first easy number) worked out perfectly. But, I agree, fractions work better / quicker in this ca...
- by buzzdeepak
Wed Feb 06, 2013 4:57 pm- Forum: Problem Solving
- Topic: og ps 123
- Replies: 7
- Views: 2870
Finance Majors/Non-Finance Majors - Overlapping Set Question
I have been a big fan of double matrix method, it simplifies any overlapping set problem (ensure columns need to be mutually exclusive - many thanks to Brent for patiently explaining this) I set my table this way (since we are given that the gender distribution for F and Non F is same - easier to vi...
- by buzzdeepak
Mon Feb 04, 2013 6:08 pm- Forum: Problem Solving
- Topic: Finance Majors/Non-Finance Majors - Overlapping Set Question
- Replies: 8
- Views: 7392
Thanks Mitch... your approach simplifies the solution and lot less to compute.
My approach was a bit lengthy:
2x3x5x7x11x13x17x19
=> 2x5 x 3x7 x 11x13 x 17x19
=> 10 x 2x10 x 143 x ~17x20
=> 10 x 2x10 x ~14x10 x ~3x100
=> 10 x 10 x 10 x 100 x 2x14x3
=> 10^5 x ~100
=> 10^7
- by buzzdeepak
Mon Feb 04, 2013 5:39 pm- Forum: Problem Solving
- Topic: OG 13 - Diagnostic - PS - 15
- Replies: 2
- Views: 1776
- by buzzdeepak
Mon Jan 28, 2013 7:14 pm- Forum: Sentence Correction
- Topic: Company's new management ....
- Replies: 8
- Views: 1602
Thanks Brian
Could you please comment on options "a1" and "a2" (these were not in the original answer choices, but wanted to see if those could be correct if they were to be in the answer choices)
Thanks...
- by buzzdeepak
Mon Jan 28, 2013 6:22 pm- Forum: Sentence Correction
- Topic: Company's new management ....
- Replies: 8
- Views: 1602
Thanks T... Please let me know if I am summarizing / generalizing it right for such problems in the future: If there is no explicit comparison in the argument, abstain from choosing that as an answer (it would be the last choice). Select a statement even though it is more general (as the first optio...
- by buzzdeepak
Mon Jan 28, 2013 5:13 pm- Forum: Critical Reasoning
- Topic: Improved technology and equipment often result in fewer inju
- Replies: 10
- Views: 4503
Company's new management ....
In their latest press release, the company's new management stated a plan for expansion of its operations into the global software market via a series of acquisitions in Asia and Latin America. the company's new management stated a plan for expansion of its operations the new company's management st...
- by buzzdeepak
Mon Jan 28, 2013 5:05 pm- Forum: Sentence Correction
- Topic: Company's new management ....
- Replies: 8
- Views: 1602
C My analysis: 1. due to (caused by) is correct in this case. So, focused on A and C 2. has / have - since share is singular, it should be has, so C Now, between B, D and E - just a quick check: B. missing "has" - apple's share has declined / samsung's share has increased - so incorrect D...
- by buzzdeepak
Mon Jan 28, 2013 4:56 pm- Forum: Sentence Correction
- Topic: Another new 700 level SC problem
- Replies: 18
- Views: 4089
Took the test yesterday and got this question wrong. I marked A as the answer but debated between that and C before deciding on my answer. I saw the explanation above and get the point that there is no DIRECT comparison between training and best equipment, but I thought C was more general "inad...
- by buzzdeepak
Mon Jan 28, 2013 3:53 pm- Forum: Critical Reasoning
- Topic: Improved technology and equipment often result in fewer inju
- Replies: 10
- Views: 4503
g(2) = 6 (substituting x = 2 in the given equation) Therefore, 1/g(2) * 1/g(x) = 1 / 6 * (x-1) / (x^2 + 2) = (x-1) / (6*(x^2 + 2)) Remember that both are reciprocals of the original equation. I think that's the only catch. (Another method is compute g(2)*g(x) = 6 * given function and take reciprocal...
- by buzzdeepak
Tue Jan 22, 2013 11:20 am- Forum: Problem Solving
- Topic: function malfunction
- Replies: 6
- Views: 1454
I quickly drew a picture to solve this: |-| _ _ _ _ _ (|-| is the train and the 5 underscores represent 5 miles in the tunnel - Easier to draw on paper than on this screen) 60 mph = 1 m / min (since answers are in mins) Tunnel is 5 miles long, so when the front of the train reaches the end of tunnel...
- by buzzdeepak
Tue Jan 22, 2013 11:12 am- Forum: Problem Solving
- Topic: Whole Train Question
- Replies: 5
- Views: 1275
Thanks Brent...
Lesson learned: If the problem is too easy (solvable within 20 secs), then need to slow down just a bit and re-evaluate the solution.
- by buzzdeepak
Tue Jan 22, 2013 11:00 am- Forum: Data Sufficiency
- Topic: Volume of a rectangular solid
- Replies: 5
- Views: 1407